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1. Having little or no weight.
2. Not experiencing the effects of gravity.

weight′less·ly adv.
weight′less·ness n.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


1. (General Physics) (of a body) having no actual weight; a state in which an object has no actual weight (because it is in space and unaffected by gravitational attraction) or no apparent weight (because the gravitational attraction equals the centripetal force and the object is in free fall)
2. (Commerce) commerce
a. (of economic activity) based on the supply of information and ideas rather than trade in physical goods: the weightless economy.
b. (of a company) having very few physical assets: weightless dot.coms.
ˈweightlessness n
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈweɪt lɪs)

being without apparent weight, as a freely falling body.
weight′less•ly, adv.
weight′less•ness, n.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.weightless - having little or no weight or apparent gravitational pullweightless - having little or no weight or apparent gravitational pull; light; "floating freely in a weightless condition"; "a baby bat...fluffy and weightless as a moth"; "jackets made of a weightless polyester fabric"
weighty - having relatively great weight; heavy; "a weighty load"; "a weighty package"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.


Having little weight; not heavy:
The American Heritage® Roget's Thesaurus. Copyright © 2013, 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
عَديم الوَزْن
bez tiaže


[ˈweɪtlɪs] ADJingrávido
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005


[ˈweɪtləs] adj
(= weighing nothing) → qui ne pèse rien
(in space) [person, object] → en apesanteur
in a weightless environment → en apesanteur
Collins English/French Electronic Resource. © HarperCollins Publishers 2005


[ˈweɪtlɪs] adjsenza peso
Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995


(wei) verb
1. to find the heaviness of (something) by placing it on a scale. He weighed himself on the bathroom scales; You must have your luggage weighed at the airport.
2. to be equal to in heaviness. This parcel weighs one kilo; How much / What does this box weigh?
3. to be a heavy burden to. She was weighed down with two large suitcases.
weight (weit) noun
1. the amount which a person or thing weighs. He's put on a lot of weight (= got much fatter) over the years.
2. a piece of metal etc of a standard weight. seven-pound weight.
3. a heavy object, especially one for lifting as a sport. He lifts weights to develop his muscles.
4. burden; load. You have taken a weight off my mind.
5. importance. Her opinion carries a lot of weight.
1. to attach, or add, a weight or weights to. The plane is weighted at the nose so that it balances correctly in flight.
2. to hold down by attaching weights. They weighted the balloon to prevent it from flying away.
ˈweightless adjective
not affected by the earth's gravity pull. The astronauts became weightless on going into orbit round the earth.
ˈweightlessness noun
ˈweighty adjective
1. important. a weighty reason.
2. heavy.
ˈweightily adverb
ˈweightiness noun
ˈweighing-machine noun
a (public) machine for weighing people, loads etc; a scale. I weighed myself on the weighing-machine at the railway station.
ˈweightlifting noun
the sport of lifting weights.
weigh anchor
to lift a ship's anchor in preparation for sailing.
weigh in to find one's weight before a fight, after a horse-race etc ( ˈweigh-in) noun
weigh out
to measure out by weighing. He weighed out six kilos of sand.
weigh up
to calculate, estimate; to consider. He weighed up his chances of success.
Kernerman English Multilingual Dictionary © 2006-2013 K Dictionaries Ltd.
References in classic literature ?
He was turned out of his nice cabin, and packed in with his belongings to share that of Lieutenant Kurt, whose luck it was to be junior, and the bird-headed officer, still swearing slightly, and carrying strops and aluminium boot-trees and weightless hair-brushes and hand-mirrors and pomade in his hands, resumed possession.
The plane, set to launch on June 20 from Cape Canaveral in Florida, will fly a series of 15 parabolas, rendering the couple and their guests weightless for 30 seconds at a time.
Define-A-Lash's patented shaped-to-the-lash brush, built-in flexible wiper and weightless formula allow for clump-free delivery.
Mr Hawking, who uses a wheelchair and is almost completely paralysed by amyotrophic lateral sclerosis, or Lou Gehrig's disease, plans to go on a weightless flight in Florida on April 26, officials at the flight operator said yesterday.
The Amanda Perrett-trained Weightless, the other British challenger, came home in fifth.
The tension inherent in the performative process was communicated in the images of the artist winding one skin around her own body until she disappeared into it and in another in which she had arranged for Flying Skinroom to be flown through the air suspended, weightless at last, from a crane.
Irish cream Baileys is looking to update its sickly sweet image with a trendy TV ad about a ``zero gravity'' bar, where hip young things try to catch bubbles of the liqueur on their tongue as it floats around a weightless room.
Tall and thin with weightless limbs and an elongated torso, she draws attention to herself with her strong technique, luxuriant musicality, and supple, easy grace.
Russell Ramsey of ad makers BBH said: "We came up with a script of people trying to get to bubbles of the drink in a weightless room.
Shifting restlessly between east and west,it immerses the reader in a strangely weightless world in which is glimpsed both the wreckage and the treasure of their lives.
Buildings were never, by their nature, weightless or transparent either, but attempts to make them appear so still occupied much of last century's architectural endeavour.
Though weightless, an object at the center of Earth would be under pressure that's about 3.6 million times that of the atmosphere at sea level.